Battery terminal



T. H. M GRATH 2,27, BATTERY TERMINAL Filed Jan. 25, 193

Patented Jan. 14, 1936 OFFICE UNETD STATES 2,027,646 BATTERY TERMINAL Thomas H. McGrath, Detroit, Mich. Application January 25, 1934, Serial No. 708,297 3 Claims. (01. 173-259) manufacture of the usual battery posts and is not susceptible to corrosion caused by chemical the storage batthe head 4 concentrically anchoring ring I which is pref- The ring is located substantially medially of the head so that it will not come in contact with the battery post and become corroded thereby. As best seen in Figure 3 of the drawing, the body 3 is provided throughout its length with a relatively large opening or socket 3 which is adapted to receive the skinned end portion 9 of a battery cable therein. Removably mounted in the body and extending longitudinally thereof in inclined relation to the socket 8 is a locking bolt 10 having a squared or hexagonal head H thereon. As shown at it, the bolt is threaded and said bolt is screwed through alined openings formed in the ring and the head t to extend into the opening 5 in the head. As will be observed, the threaded portion of the bolt l2 extends into the socket 8 and contacts with the skinned end portion 9 of the cable so that the bolt will provide retaining means for the skinned end of the cable and prevent accidental displacement thereof from the terminal.

In use, the device is placed over the battery post 2 and bolt I is tightened by engaging a pair of pliers or a wrench with the squared head H and rotating said bolt for engaging the end portion thereof extending into the opening with the battery post and providing a tight connection. Attention is directed to the fact that the ring 1 serves not only to provide a support for the inner end of the bolt but this ring also serves to reinforce the entire head so that mutilation thereof will be reduced to a minimum.

When it is desired to remove the device from the battery post it is only necessary to rotate the bolt in a counter-clockwise direction for retracting the inner end thereof from the post 2, when the entire device may be readily lifted from the post. The webs 6 will tend to prevent fracture of the device which might take place at the joint between the head and the body of the device.

Referring now more particularly to the modification of my This invention relates to an improved battery terminal.

One object of the invention is to provide a battery terminal which is of such construction 5 that a battery cable may be effectually connected with a battery post in such manner that the cable will be protected against corrosion occurtery. thereof is an erably formed of steel.

Another object of the invention is to provide a battery terminal which may the battery post and removed therefrom with the greatest facility and which, when installed, will effect a positive electrical connection between the battery post and battery cable.

The invention seeks as a further object the provision of a device of this character which, in itself, will not be susceptible to chemical reaction occurring at the battery post.

And the invention seeks as a still further object the provision of a battery terminal which may be manufactured cheaply in large quantities to retail at a small figure.

Other and incidental not specifically pointed out lender themselves apparent during the following description.

My invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a top plan view of a battery terminal constructed in accordance with my invention installed on a battery post.

Figure 2 is a side elevation of my improved battery terminal installed in proper position.

Figure 3 is a horizontal sectional view of my "device on the line 3-3 of Figure 2, looking in the direction indicated by the arrows.

Figure 4 is a horizontal sectional view showing a slightly modified form of my invention.

Figure 5 is a top plan view, partly broken away, and shown in section, of a still further modification of my invention.

Referring now more particularly to the drawing, the numeral i indicates a portion of a storage battery which is provided with a battery post 2.

My improved battery terminal consists of a body portion 3 which is preferably formed from relatively soft metal and gradually enlarged in diameter toward its outer end. Formed integral with the body is a circular head 4 having an opening t therein. Providing reinforcement for the joint between the head 4 and the body 3 are webs 6. The head, body and webs are preferably molded integral from a composition comprising lead and antimony. This composition 55 is substantially objects of the invention hereinabove will the course of I3 having a 50 I5 prohead and the body, as in the preferred form. Formed in the end of the body 3 and extending substantially half of its length, is a socket Hi the same as is employed in the which is adapted to receive the skinned end as shown at 2| l9 into the opening I! for engagement with the battery post l8.

said first mentioned modification.

Having thus described the invention, what I claim is:

to receive a battery post, a ring of relatively hard metal embedded in the head concentrically there- I may be clamped about the post, said bolt being shiftable when turned in one 35 direction for freeing the device from the post.

THOMAS H. MCGRATH. 

